Pump.



No. 802,353. PATENTED OCT. 17, 1905.

P. H. 11m.

PUMP.

APPLICATION FILED MAR.18, 1905.

ATTORNEYS hillTTi TATTES lt dtEhlT lh li ll@.

PUMP,

No. eoasss.

pecification of Letters Patent.

Patented Oct. 17, 1905.

Application filed March 18,1905. Serial No. 250,773.

To It whom 212 minty concern:

Be it known that I, PHILIP H. D EIS, a citizen of the United States, residing in Washington, District of Columbia, have invented certain new and useful Improvements in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to pumps, and it has reference particularly to pumps of the kind illustrated by Unit-ed States Letters Patent No. 759,080, dated May 3, 1905.

The object of my invention is to so combine two such lifting means as constitute the essential feature of my aforesaid patent in a single mechanism as will not only result in producing substantially a continuous stream from the discharge, but will cause the parts to regulate the action of each other in such manner that the load will be evenly or uni: formly distributed and not at any time suddenly applied.

My invention will be found fully illustrated in the accompanying drawing, where in the single feature presented, the apparatus is shown partly in vertical section and partly in elevation.

a designates the main or well pipes, the same having a common discharge through a nozale 5.

c is a staging or platform at the mouth of the well (Z, supporting a standard a, in which is fulcrumed between its ends a lever f. To the rock-shaft g, which forms the fulcrum of this lever, is secured a crank 71,, whereby the power for operating the pump may be applied.

The lower end of each well-pipe communicates with a chamber z', which is divided by a partition 3' into two compartments corre sponding to the two well-pipes.

7e designates downwardly-extending pipes alined with the well-pipes a. Z denotes four other downwardly-eXtending pipes, two corresponding to each pipe 11. The pipes l: are open at the bottom, and the pipes l are preferably provided with strainers m and valves m. In each pipe 7:: is arranged a piston 02., which is carried by a sucker-rod 0, the two sucker-rods being pivotally connected to opposite ends of lever f.

p is a cross-arm carried by each suckerrod, and two valve-stems carried by each cross-arm and extending down into the corresponding pipes The valve-stems q carry upwardly-opening flap-valves r of any wellknown construction.

In order to secure vertical adjustment of the valves, the cross-arm 7) is secured between two nuts s, screwed on the sucker-rod a, and the valve-stems are secured in the cross-arm by two nuts 26, screwed on the valve-stems.

a is a small orifice in partition 7'.

The operation of each unit of my present pump is in itself the same as the pump described in "my patent above referred to Z. 0., the valves act to draw the water from the Well into the water-coeducting means, which latter comprises pipe (0, one compartment of chamber 11, and what may be regarded as its extensionpipe /i;. The valves also of course act upon each upstroke to effect the lifting of the body of water standing in the conducting means after the preceding downstroke. Normally the water in the well stands at a height where chamber will be at least partly submerged. This brings the piston rt below this level, with the consequence that since pipe 7: is open at the bottom the piston, .in effect, works up and down in the well-water and acts to impart a regulating eflect on the driving means. This regulating effect is dependent, in part at least, upon the fact that since the piston stands at all times confined between two bodies of water, one above and the other relatively below it, it is required just at the moment of change of stroke in either direction to overcome the inertia of that one of said bodies toward which it is next directed.

Referring to the conjoint operation of the two units, while one is lifting water (or doing the work) the other is assuming the condition where it can lift. There is thus a continuous unbroken maintenance of load on the source of power at all times, each unit balancing the other. In other words, after the pump is once started there is no condition of inertia to be overcome. it being assumed that in practice both pistons a will not iit the same in their respective pipes Z: in order that the water in each conducting means may always stand at the same height, and hence the loads of the two water-lifting means may be kept the same, the orilice w. is provided. Thus if the pump were left standing any considerable time and there were a tendency of one piston or to leak more than the other such tendency to reduce the load of one lifting means more than the other will be compensated by orifice a, which will permit the water in the two conducting means taken as a Whole to seek its level. V

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

The combination of Water-conducting means having its intake portion formed as two compartments each open at the bottom and having upwardly-opening valved inlet affording access from the well thereto above the bottom opening, said compartments having a limited port of communication with each other, a pis- In testimony that I claim the foregoing I Y have hereunto set my hand this 16th day of March, 1905.

PHILIP H. .DEIS. \Vitnesses:

J OHN W. STEWARD, M. D. BELL. 

